diff --git a/src/Symfony/Bundle/FrameworkBundle/composer.json b/src/Symfony/Bundle/FrameworkBundle/composer.json
index d1346447c3394..f2b85c5f0c84a 100644
--- a/src/Symfony/Bundle/FrameworkBundle/composer.json
+++ b/src/Symfony/Bundle/FrameworkBundle/composer.json
@@ -66,6 +66,7 @@
         "phpunit/phpunit": "<4.8.35|<5.4.3,>=5.0",
         "symfony/asset": "<3.4",
         "symfony/console": "<3.4",
+        "symfony/dotenv": "<4.2",
         "symfony/form": "<4.2",
         "symfony/messenger": "<4.2",
         "symfony/property-info": "<3.4",